Pitman head for mowers, binders, reapers, and the like



July 1, 1930. J. A. LOCHBAUM 1,759,441

PITMAN HEAD FOR MOWERS, BINDERS, REAPERS, AND THE L'IKE Filed July 27, 1928 duct/Mg Patented July 1930 UNITED STATES JOHN A. LOGHBAUM,

OF SHYVILLE, OHIO PITMAN HEAD FOR MOWERS, BINDERS, REAPERS, AND THE LIKE Application filed July 27,

" This invention relates to new and useful improvements in cutting devices, and particularly to cutting devices for use in connection with mowing-machines, reapers, and the like machines.

One object of the invention is to provide a head for the cutter bar of the sickle, of such a machine, which may be more easily operated than similar devices now in use. I

Another object is to provide a device of this character which can be easily adjusted to its proper position, in the cutting apparatus of such a machine as named above, and which can be adjusted to take up or 001m pensate for Wear in the parts.

Another object is to provide a device of this character which can be more easily lubricated, and which obviates the usual running hot, of the sickle bar or knife, and the slide in which such knife and its head are slidably drawing.

mounted.

Other objects and advantages will be apparent from the following description when taken in connectionwith the accompanying therewith.

Referring particularly to the accompanying drawing, represents the slide or guide way of the knife bar of a mowing machine. The driving wheel or disk is shown at 13, and is provided with the usual wrist-pin 14,

on which is engaged the T-shaped coupling 15. The interior of the leg of the member is threaded to receive one end of the pitman rod 16. Slidable in the guideway 10 is the knife head member 17 to which is attached the cutter bar 18. The inner end of the knife head 17 is formed with an enlargement 20 having the upper and lower flat faces 21 p which engage in the upper and lower Walls of 1928. Serial No. 295,747.

the groove of said guideway. Extending laterally from one side of said enlargement 20 j is a stub shaft 22, and disposed on said shaft is the cross head of the T-shaped coupling member 23, said member having its leg receiving one of the threaded ends of the before-mentioned pitman rod 16. The upper side of the cross head of the member 23 is formed with an upwardly extending hollow portion 24, the interior of which communi- 6g cates with the interior of said cross head of saidmember 23, said portion 24: being adapted to contain lubricant to be supplied to the 7, parts 23 and 22, for the easy and efiicient operation thereof. Suitable lubricant supplying means are mounted on the guideway 10 to provide for the efiicient lubrication of theguideway and the contacting portions of the knife head.

WVhen it becomes necessary to take up the wear in T-shaped members, and the wrist-- pin and stub shaft, the operator simply turns the rod 16.

What is claimed is:

A knife head comprising an elongated member having means at one end for attachment of a cutter bar and an enlargement at the other end provided with upper and lower flat portions for engagement with the guideway of a mower, an integral laterally extending stub shaft on one side of the enlargement, and a hollow T -shaped member havingits transverse head rockably supported on the said shaft and having a threaded shank for adjustable reception of an end of a pitman rod, said transverse head having a longitudinal opening in its upper side provided with upwardly extending surrounding walls. I

In testimony whereof, I affix my signature.

JOHN A. LOCI-IBAUM. 

